OBSERVATION OF LOW-CHIRP MODULATION IN INGAAS-INALAS MULTIPLE-QUANTUM-WELL OPTICAL MODULATORS UNDER 30 GHZ

被引：19
|
作者：
WAKITA, K
KOTAKA, I
MITOMI, O
ASAI, H
KAWAMURA, Y
机构：
[1] NTT Opto-Electronics Laboratories, Atsugi-shi, Kanagawa, 243-01
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 1991年 / 3卷 / 02期
关键词：
D O I：
10.1109/68.76867
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Modulated light spectra are measured in long-wavelength InGaAs-InAIAs multiple-quantum-well intensity modulators under 30 GHz large signal modulation. The linewidth broadening factor alpha is determined from the relation between the intensity modulation index and the side-band strength relative to the carrier. The minimum alpha value is estimated to be 0.70, which is almost the same as the lowest value so far reported in a bulk Franz-Keldysh modulator.
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收藏
页码：138 / 140
页数：3
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